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Thank you for your interest in 603 Karate!  Our motto is "Earn your advantage in life".  To accomplish this our classes are designed to:

  • Build Confidence

  • Develop Self Discipline

  • Display Respect

Our positive, safe and welcoming atmosphere gives our members the chance to use traditional martial arts training as a path to advance their lives, careers, and happiness.

All of our classes are held at the Pines Community Center in Northfield, NH.  We have a "Kids Karate" program (ages 6+) and a "Teen/Adult" program.  Space is limited, so please contact us to check for availability!

Simply fill out the "Request More Information" form above to learn more!

Hello, my name is John Guarnieri.  I opened 603 Karate in 2017 with the goal of helping people build leadership skills and realize their full potential.  Since then I have seen tremendous growth in individuals at the dojo both physically and mentally, all while learning a highly effective self defense system.

If you are looking for a fun physical activity, come try a class and meet some of the nicest people in the Lakes Region.  603 Karate offers a safe and encouraging environment for anyone looking to improve themselves.

Thank you very much!  -john g

Kids Program for ages 6+
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Click here to learn more about our awesome Kids Program and how Karate training can help your child!

Teen/Adult Program
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What are the benefits of taking Karate as an adult?  Click here to learn more about what classes at 603 Karate can offer you!

Convenient Location

603 Karate is located within the Pines Community Center in Northfield, NH, just off of exit 19 North on I-93 and 5 minutes from exit 20.

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